Home / 78,081,530.84-117,098,713.45-23,479,621.75

Finding the Fourth Proportional to 78,081,530.84, 117,098,713.45 and 23,479,621.75

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Solution

The fourth proportional to 78,081,530.84, 117,098,713.45 and 23,479,621.75 is: 35,212,341.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,081,530.84 : 117,098,713.45 = 23,479,621.75 : x
  2. Step 2: Convert to fraction form
    78,081,530.84/117,098,713.45 = 23,479,621.75/x
  3. Step 3: Cross multiply
    78,081,530.84x = 117,098,713.45 × 23,479,621.75
  4. Step 4: Simplify right side
    78,081,530.84x = 2,749,433,499,130,057
  5. Step 5: Solve for x
    x = 2,749,433,499,130,057/78,081,530.84
  6. Step 6: Final answer
    x = 35,212,341.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.